Storiascopio · Era 1 of 12 · primary year 3
The first dinosaurs
about 230 million years ago · Pangaea (fossils in Argentina and Brazil)
In short
The first dinosaurs appeared in the Triassic and were just one of many groups of land reptiles. The oldest definite fossils come from Argentina and Brazil. Many were small and walked on two legs. After further extinctions they multiplied into plant-eaters and hunters of very different sizes.
Why it matters Their success would shape life on land for more than 160 million years.
Source: Natural History Museum (London), “Where did dinosaurs come from?”
Where we are in the era “The Earth before us”
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about 13.8 billion years agoEvent 22 of 25about 66 million years ago
Your turn
Name ______________________ Class ______ Date __________
When did it happen? Find the date at the top and write it here:
Tell it in your own words: what happened?
Draw the scene below.
storiascopio.com/en/event/the-first-dinosaurs/ · free worksheet, you may photocopy it for your class